W415-1005 / 03.01.11
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If more than two furnaces are being installed in close proximity, each additional combustion air intake and
exhaust termination set shall not terminate less than 12 in (300 mm) apart. Note: Canadian installations of
120000 Btu/hr require 3 ft (900 mm).
RECIRCULATION OF FLUE GASES MAY OCCUR CAUSING THE INTAKE PIPE TO
FREEZE SHUT DURING COLD WEATHER OPERATION IF THE VENTING SYSTEM IS NOT
INSTALLED PER THESE GUIDELINES.
WARNING
!
!
10.7 IN CANADA
Refer to Section 9.0 “Venting Guidelines”, 9.2 “In Canada”.
10.8 IN UNITED STATES
Refer to Section 9.0 “Venting Guidelines”, 9.3 “In United States”.
10.9 FURNACE CONNECTION
IMPORTANT
:
•
CLEAN AND DE-BURR ALL PIPE CUTS. THE SHAVINGS MUST NOT BE ALLOWED TO
BLOCK THE EXHAUST, COMBUSTION AIR INLET OR CONDENSATE DRAIN LINES.
• IF THE PIPE AND FITTINGS ARE TO BE OTHER THAN PVC, USE THE PROPER CLEANER,
PRIMER AND CEMENT FOR THE DISSIMILAR MATERIALS.
THERE MUST NOT BE ANY OPENINGS BETWEEN THE BLOWER DIVISION PANEL AND
THE COMBUSTION COMPARTMENT. THE BLOWER COMPARTMENT IS UNDER GREATER
SUCTION THEN THE COMBUSTION COMPARTMENT AND CAN PULL COMBUSTION
AIR FROM THE BURNERS AND CAUSE INCOMPLETE COMBUSTION AND ERRATIC
FURNACE OPERATION.
THE EXHAUST VENT MUST BE SUPPORTED APPROPRIATELY PRIOR TO IT BEING
FITTED TO THE EXHAUSTER. UNDER NO CIRCUMSTANCES SHALL THE EXHAUSTER
BEAR ANY WEIGHT OF THE VENTING SYSTEM.
WARNING
!
!